Question

1. based on the concept of periodic trends, answer the following questions for these atoms: au, zn, s, si. be able to defend your answers.

a which element has the highest electronegativity?
b. which element has the most metallic character?
c. which element has the largest atom?

Explanation:

• a. Electronegativity: Electronegativity increases across a period (from left to right) and decreases down a group. Sulfur (\(S\)) is a non - metal. Among the given elements (\(Au\), \(Zn\), \(S\), \(Si\)), \(S\) is further to the right in the periodic table compared to \(Si\), and \(Au\) and \(Zn\) are metals (metals generally have lower electronegativities than non - metals).
• b. Metallic character: Metallic character decreases across a period (from left to right) and increases down a group. Gold (\(Au\)) is a transition metal. \(Zn\) is also a metal, but \(Au\) is lower in the periodic table (in terms of its position relative to \(Zn\) in the context of metallic behavior trends). \(Si\) is a metalloid and \(S\) is a non - metal.
• c. Atomic size: Atomic size increases down a group and decreases across a period. Gold (\(Au\)) has more electron shells compared to \(Zn\), \(S\), and \(Si\). As we move down the periodic table, the addition of electron shells leads to an increase in atomic radius.

Answer:

a. \(S\)
b. \(Au\)
c. \(Au\)